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NSN 4820-00-671-6438, 4820006716438
VALVE,RESTRICTOR CHECK

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 006716438
Codification Country
United States
Item Name Code
INC 20520
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 4820-00-671-6438

National Stock Number (NSN) 4820-00-671-6438, or NIIN 006716438, (valve,restrictor check) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Dec 28, 2016. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M017V3500. The total value of the awarded contracts has been US$ 1,553.10.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 21, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 20520. [A VALVE HAVING AN ORIFICE IN THE POPPET, DISK, OR THE LIKE, TO PERMIT RESTRICTED FLUID FLOW WHEN THE VALVE IS SEATED. IT DOES NOT HAVE A STEM OR PROVISIONS FOR PRESSURE ADJUSTMENTS, AND IS SIMILAR TO A VALVE, CHECK WITH THE EXCEPTION OF THE ORIFICE WHICH PERMITS FLUID FLOW IN MORE THAN ONE DIRECTION.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820006716438 contains an unknown precious metal.

This NSN is associated to Schedule B 8481309000: check valves of materials other than copper, iron or steel. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.

This information was last updated on .


Technical Characteristics

END ITEM IDENTIFICATION
(AGAV) GRUMMAN A10 AIRCRAFT
CONNECTION TYPE
(AWLS) THREADED INTERNAL PIPE 1ST END
CONNECTION STYLE
(AHNC) PLAIN, OPTIONAL END (PIPE) ALL ENDS
DISK LOADING METHOD
(ADSU) SPRING
FLOW CONTROL DEVICE
(ADQU) PISTON
MATERIAL
(MATT) ALUMINUM ALLOY BODY
MATERIAL
(MATT) ALUMINUM ALLOY FLOW CONTROL DEVICE
MAXIMUM OPERATING PRESSURE
(CQGM) 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) OIL, HYDRAULIC SINGLE RESPONSE
MOUNTING POSITION
(BBJX) HORIZONTAL
NOMINAL THREAD SIZE
(CQJX) 0.375 INCHES ALL ENDS
SPECIAL FEATURES
(FEAT) 0.07 GPM FLOW RATE
STYLE DESIGNATOR
(STYL) STRAIGHT THRU
THREAD DIRECTION
(AAJF) RIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATOR
(THSD) NPT ALL ENDS
VALVE OPERATION METHOD
(AQLR) AUTOMATIC

Manufacturer Part Numbers


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